diff --git a/07_STD/Testat/grundgeruest.cpp b/07_STD/Testat/grundgeruest.cpp
index b969ed8..64df26a 100644
--- a/07_STD/Testat/grundgeruest.cpp
+++ b/07_STD/Testat/grundgeruest.cpp
@@ -5,7 +5,7 @@
 
 struct BinaryOctet {
   bool evenParity;
-  char bitsAsDigits[bitsPerOctet];
+  char bitsAsDigits[8];
 };
 
 int main()